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  3. Mineral Resource Data System (MRDS)

Twin Peaks Prospects

Occurrence in Owyhee county in Idaho, United States with commodities Silver, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10069925
MRDS ID W007711
Record type Site
Current site name Twin Peaks Prospects
Related records 10120629

Geographic coordinates

Geographic coordinates: -116.85318, 43.08518 (WGS84)
Elevation 2042
Relative position 5 MI NNW OF DELAMAR

Site location context

Political divisions (FIPS codes)

Owyhee(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

De Lamar(quadrangle 1:24,000 scale)

Murphy(quadrangle 1:100,000 scale)

Boise(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Snake-Succor(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Owyhee

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 004S 004W 07 Idaho

Comments on the location information

  • ON W. SIDE OF THE S. PEAK ABOUT 200 FT. BELOW THE SUMMIT. AND NEAR HEAD OF LITTLE COW CREEK BETWEEN PEAKS.

Commodities

Commodity Importance
Silver Tertiary
Gold Tertiary

Materials information

Materials Type of material
Gold Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitization

Analytical data

Result SEMI - QUANTITATIVE ANALYSIS OF SPECIMEN GAVE 17.0 OZ. AG/TON. SECOND SPECIMEN YIELDED LESS THAN 5 OZ. AG/TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Silver City Siliceous Brecciated Rhyolite
    Rock description Silver City Siliceous Brecciated Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -116.85318, 43.08518
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Brecciation; Rhyolite Dome

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Faults, Fractures

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Carson District

Land status

Ownership category BLM Administrative Area

Reference information

Bibliographic references

  • Deposit

    ASHER, R. R., 1968, GEOLOGY AND MINERAL RESOURCES OF A PORTION OF THE SILVER CITY REGION, OWYHEE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 138, 106 P

  • Deposit

    1968 GEOLMAP IDAHO BUREAU OF MINES & GEOL. PAMPHLET 13

General comments

Subject category Comment text
Deposit VEIN IN ONE PIT STRIKES N 45 DEG W, DIPS 30 DEG W

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1975 Miller, Pat J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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